Materials A and B decay over time. The function for the amount of material A is A(t) = 1000(0.5) ^ (2t) and for the amount of material B is B(t)=1000(0.25)^ t, where t represents time in days. On which day will the amounts of material be equal ?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297